Package com.db4o.internal.query.processor

Class QCandidateBase

java.lang.Object

com.db4o.foundation.Tree<java.lang.Integer>

com.db4o.internal.TreeInt

com.db4o.internal.query.processor.QCandidateBase

All Implemented Interfaces:

DeepClone, ShallowClone, Visitable<java.lang.Integer>, InternalCandidate, Readable, ReadWriteable, Candidate

Direct Known Subclasses:

QCandidate, QPrimitiveCandidate

public abstract class QCandidateBase
extends TreeInt
implements InternalCandidate

Field Summary

Fields

Modifier and Type	Field	Description
protected QCandidates	_candidates
protected List4	_dependants

Fields inherited from class com.db4o.internal.TreeInt

_key

Fields inherited from class com.db4o.foundation.Tree

_preceding, _size, _subsequent

Constructor Summary

Constructors

Constructor	Description
QCandidateBase(QCandidates candidates, int id)

Method Summary

Modifier and Type	Method	Description
protected void	addDependant(InternalCandidate a_candidate)
QCandidates	candidates()
void	doNotInclude()
boolean	duplicates()
boolean	evaluate(QPending pending)
InternalCandidate	getRoot()
int	id()
boolean	include()
void	include(boolean flag)	For external interface use only.
ObjectContainer	objectContainer()	Returns the object container the query is executed on
Tree	onAttemptToAddDuplicate(Tree oldNode)
Tree	pendingJoins()
void	root(InternalCandidate root)
LocalTransaction	transaction()

Methods inherited from class com.db4o.internal.TreeInt

add, addAll, compare, equals, find, find, key, marshalledLength, marshalledLength, marshalledLength, ownLength, read, removeLike, shallowClone, shallowCloneInternal, toString, write, write, write

Methods inherited from class com.db4o.foundation.Tree

accept, add, add, add, addedOrExisting, balance, balanceCheckNulls, calculateSize, deepClone, deepClone, depth, filter, find, find, findGreaterOrEqual, findSmaller, first, last, last, nodes, ownSize, remove, removeChildren, removeFirst, removeLike, removeLike, removeNode, root, rotateLeft, rotateRight, setSizeOwn, setSizeOwnPlus, setSizeOwnPlus, setSizeOwnPreceding, setSizeOwnPrecedingSubsequent, setSizeOwnSubsequent, size, size, traverse, traverse, traverse, traverseFromLeaves, wasAddedToTree

Methods inherited from class java.lang.Object

clone, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface com.db4o.query.Candidate

getObject

Methods inherited from interface com.db4o.internal.query.processor.InternalCandidate

classMetadata, evaluate, fieldIsAvailable, prepareComparison

Field Detail

_candidates

protected final QCandidates _candidates

_dependants

protected List4 _dependants

Constructor Detail

QCandidateBase

public QCandidateBase(QCandidates candidates,
                      int id)

Method Detail

addDependant

protected void addDependant(InternalCandidate a_candidate)

doNotInclude

public void doNotInclude()

Specified by:

doNotInclude in interface InternalCandidate

evaluate

public boolean evaluate(QPending pending)

Specified by:

evaluate in interface InternalCandidate

objectContainer

public ObjectContainer objectContainer()

Description copied from interface: Candidate

Returns the object container the query is executed on

Specified by:

objectContainer in interface Candidate

Returns:

the ObjectContainer

getRoot

public InternalCandidate getRoot()

Specified by:

getRoot in interface InternalCandidate

transaction

public final LocalTransaction transaction()

Specified by:

transaction in interface InternalCandidate

include

public boolean include()

Specified by:

include in interface InternalCandidate

include

public void include(boolean flag)

For external interface use only. Call doNotInclude() internally so dependancies can be checked.

Specified by:

include in interface Candidate

Parameters:

flag - true to include that object. False otherwise.

onAttemptToAddDuplicate

public Tree onAttemptToAddDuplicate(Tree oldNode)

Overrides:

onAttemptToAddDuplicate in class Tree<java.lang.Integer>

duplicates

public boolean duplicates()

Overrides:

duplicates in class TreeInt

candidates

public QCandidates candidates()

Specified by:

candidates in interface InternalCandidate

root

public void root(InternalCandidate root)

Specified by:

root in interface InternalCandidate

pendingJoins

public Tree pendingJoins()

Specified by:

pendingJoins in interface InternalCandidate

id

public int id()

Specified by:

id in interface InternalCandidate